Timeless luxury design, hillside privacy with fantastic views, and Napa-inspired Estate living with curated gardens in Lafayette’s coveted Happy Valley. Tucked into the coveted Happy Valley Highlands of Lafayette, this architect-designed estate by renowned William Simpson offers timeless elegance, privacy, and a Napa Valley-inspired setting just minutes from downtown. Rebuilt in 2008, the 4BD+/4BA home features 3,530 sq ft of light-filled living with vaulted ceilings, hardwood floors, and refined finishes throughout. The gourmet kitchen showcases premium appliances, a dramatic copper range hood, oversized island with seating, and seamless flow into the inviting family room with limestone fireplace. The primary suite is a true retreat, complete with a spa-like bath, soaking tub beneath arched windows, and tranquil garden views. Designed for both everyday comfort and entertaining, the home offers multiple living spaces, en-suite bedrooms, and custom details throughout. The grounds, designed by famous Christopher Lines Design, feature lush landscaping, treetop vistas, and a striking limestone fountain creating an unforgettable sense of arrival. Three-car garage, solar, EV readiness, battery backup, and flexible lower level. Ideally located near top-rated schools, trails, downtown Lafayette, BART, and freeway access.